Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: DMSCMDAGGT0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
240-622 4 La Plata MD 2593 CORE COMMUNICATIONS, INC.- MD 236   2019-03-29   
240-622 6 La Plata MD 2593 CORE COMMUNICATIONS, INC.- MD 236   2019-03-29   
240-622 7 La Plata MD 2593 CORE COMMUNICATIONS, INC.- MD 236   2019-03-29   
571-336 3 Engleside VA 5832 CORETEL VIRGINIA, LLC - VA 236   2019-04-01   
571-336 9 Engleside VA 5832 CORETEL VIRGINIA, LLC - VA 236   2019-04-01   
571-360 9 Independent Hill VA 5832 CORETEL VIRGINIA, LLC - VA 236   2019-03-31   
571-536 A Washington Zone 19 VA 5832 CORETEL VIRGINIA, LLC - VA 236      
571-536 3 Washington Zone 19 VA 5832 CORETEL VIRGINIA, LLC - VA 236   2019-05-09   
571-697 A Triangle VA 5832 CORETEL VIRGINIA, LLC - VA 236      
571-697 6 Triangle VA 5832 CORETEL VIRGINIA, LLC - VA 236   2019-05-09   
571-842 A Washington Zone 8 VA 5832 CORETEL VIRGINIA, LLC - VA 236      
571-842 5 Washington Zone 8 VA 5832 CORETEL VIRGINIA, LLC - VA 236   2019-05-09   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.